2 * (C) Copyright 2000-2009
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 * SPDX-License-Identifier: GPL-2.0+
9 * Definitions for Command Processor
15 #include <linker_lists.h>
21 /* Default to a width of 8 characters for help message command width */
22 #ifndef CONFIG_SYS_HELP_CMD_WIDTH
23 #define CONFIG_SYS_HELP_CMD_WIDTH 8
28 * Monitor Command Table
32 char *name; /* Command Name */
33 int maxargs; /* maximum number of arguments */
34 int repeatable; /* autorepeat allowed? */
35 /* Implementation function */
36 int (*cmd)(struct cmd_tbl_s *, int, int, char * const []);
37 char *usage; /* Usage message (short) */
38 #ifdef CONFIG_SYS_LONGHELP
39 char *help; /* Help message (long) */
41 #ifdef CONFIG_AUTO_COMPLETE
42 /* do auto completion on the arguments */
43 int (*complete)(int argc, char * const argv[], char last_char, int maxv, char *cmdv[]);
47 typedef struct cmd_tbl_s cmd_tbl_t;
50 #if defined(CONFIG_CMD_RUN)
51 extern int do_run(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
54 /* common/command.c */
55 int _do_help (cmd_tbl_t *cmd_start, int cmd_items, cmd_tbl_t * cmdtp, int
56 flag, int argc, char * const argv[]);
57 cmd_tbl_t *find_cmd(const char *cmd);
58 cmd_tbl_t *find_cmd_tbl (const char *cmd, cmd_tbl_t *table, int table_len);
60 extern int cmd_usage(const cmd_tbl_t *cmdtp);
62 #ifdef CONFIG_AUTO_COMPLETE
63 extern int var_complete(int argc, char * const argv[], char last_char, int maxv, char *cmdv[]);
64 extern int cmd_auto_complete(const char *const prompt, char *buf, int *np, int *colp);
68 * cmd_process_error() - report and process a possible error
70 * @cmdtp: Command which caused the error
71 * @err: Error code (0 if none, -ve for error, like -EIO)
72 * @return 0 if there is not error, 1 (CMD_RET_FAILURE) if an error is found
74 int cmd_process_error(cmd_tbl_t *cmdtp, int err);
79 * All commands use a common argument format:
81 * void function (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
84 #if defined(CONFIG_CMD_MEMORY) \
85 || defined(CONFIG_CMD_I2C) \
86 || defined(CONFIG_CMD_ITEST) \
87 || defined(CONFIG_CMD_PCI) \
88 || defined(CONFIG_CMD_PORTIO)
90 extern int cmd_get_data_size(char* arg, int default_size);
93 #ifdef CONFIG_CMD_BOOTD
94 extern int do_bootd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
96 #ifdef CONFIG_CMD_BOOTM
97 extern int do_bootm(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
98 extern int bootm_maybe_autostart(cmd_tbl_t *cmdtp, const char *cmd);
100 static inline int bootm_maybe_autostart(cmd_tbl_t *cmdtp, const char *cmd)
106 extern int do_bootz(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
108 extern int common_diskboot(cmd_tbl_t *cmdtp, const char *intf, int argc,
111 extern int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
114 * Error codes that commands return to cmd_process(). We use the standard 0
115 * and 1 for success and failure, but add one more case - failure with a
116 * request to call cmd_usage(). But the cmd_process() function handles
117 * CMD_RET_USAGE itself and after calling cmd_usage() it will return 1.
118 * This is just a convenience for commands to avoid them having to call
119 * cmd_usage() all over the place.
122 CMD_RET_SUCCESS, /* 0 = Success */
123 CMD_RET_FAILURE, /* 1 = Failure */
124 CMD_RET_USAGE = -1, /* Failure, please report 'usage' error */
128 * Process a command with arguments. We look up the command and execute it
129 * if valid. Otherwise we print a usage message.
131 * @param flag Some flags normally 0 (see CMD_FLAG_.. above)
132 * @param argc Number of arguments (arg 0 must be the command text)
133 * @param argv Arguments
134 * @param repeatable This function sets this to 0 if the command is not
135 * repeatable. If the command is repeatable, the value
137 * @param ticks If ticks is not null, this function set it to the
138 * number of ticks the command took to complete.
139 * @return 0 if the command succeeded, 1 if it failed
141 int cmd_process(int flag, int argc, char * const argv[],
142 int *repeatable, unsigned long *ticks);
144 #endif /* __ASSEMBLY__ */
149 #define CMD_FLAG_REPEAT 0x0001 /* repeat last command */
150 #define CMD_FLAG_BOOTD 0x0002 /* command is from bootd */
152 #ifdef CONFIG_AUTO_COMPLETE
153 # define _CMD_COMPLETE(x) x,
155 # define _CMD_COMPLETE(x)
157 #ifdef CONFIG_SYS_LONGHELP
158 # define _CMD_HELP(x) x,
160 # define _CMD_HELP(x)
163 #define U_BOOT_CMD_MKENT_COMPLETE(_name, _maxargs, _rep, _cmd, \
164 _usage, _help, _comp) \
165 { #_name, _maxargs, _rep, _cmd, _usage, \
166 _CMD_HELP(_help) _CMD_COMPLETE(_comp) }
168 #define U_BOOT_CMD_MKENT(_name, _maxargs, _rep, _cmd, _usage, _help) \
169 U_BOOT_CMD_MKENT_COMPLETE(_name, _maxargs, _rep, _cmd, \
172 #define U_BOOT_CMD_COMPLETE(_name, _maxargs, _rep, _cmd, _usage, _help, _comp) \
173 ll_entry_declare(cmd_tbl_t, _name, cmd) = \
174 U_BOOT_CMD_MKENT_COMPLETE(_name, _maxargs, _rep, _cmd, \
175 _usage, _help, _comp);
177 #define U_BOOT_CMD(_name, _maxargs, _rep, _cmd, _usage, _help) \
178 U_BOOT_CMD_COMPLETE(_name, _maxargs, _rep, _cmd, _usage, _help, NULL)
180 #if defined(CONFIG_NEEDS_MANUAL_RELOC)
181 void fixup_cmdtable(cmd_tbl_t *cmdtp, int size);
184 #endif /* __COMMAND_H */